<template>
  <div>
    <div class="card" style="margin-bottom: 5px">
      <el-input clearable @clear="load" style="width: 260px;margin-right: 5px"  v-model="data.title1" placeholder="请输入标题查询" :prefix-icon="Search"></el-input>
      <el-button type="primary" @click="load">查询</el-button>
      <el-button @click="reset">重置</el-button>
    </div>

    <div class="card" style="margin-bottom: 5px" v-if="data.user.role==='USER'">
      <el-button type="primary" @click="handleAdd">新 增</el-button>
    </div>

    <div class="card" style="margin-bottom: 5px">
      <el-table :data="data.tableData" style="width: 100%" :header-cell-style="{color:'#333',backgroundColor:'#eaf4ff'}">
        <el-table-column  label="封面图" width="100">
          <template #default="scope">
            <el-image v-if="scope.row.img" :src="scope.row.img" :preview-src-list="[scope.row.img]" :preview-teleported="true"
                      style="width: 50px;height: 50px;border-radius: 5px;display: block"/>
          </template>
        </el-table-column>
        <el-table-column prop="title1" label="标题"/>
        <el-table-column prop="categoryTitle" label="书籍类型"/>
        <el-table-column prop="userName" label="发布用户"/>
        <el-table-column prop="content" label="内容详情">
          <template v-slot="scope">
            <el-button type="primary" @click="viewContent(scope.row.content)">点击查看</el-button>
          </template>
        </el-table-column>
        <el-table-column prop="time" label="发布时间" />
        <el-table-column label="操作" width="100" >
          <template #default="scope">
            <el-button v-if="data.user.role==='USER'" type="primary" icon="Edit" circle @click="handleEdit(scope.row)"></el-button>
            <el-button type="danger" icon="Delete" circle @click="del(scope.row.id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>

    <div class="card" style="margin-bottom: 5px">
      <el-pagination
          v-model:current-page="data.pageNum"
          v-model:page-size="data.pageSize"
          :page-sizes="[5,10,20]"
          :total="data.total"
          layout="total,sizes, prev, pager, next,jumper"
          @current-change="load"
          @size-change="load"
      />
    </div>


    <el-dialog title="推荐信息" v-model="data.formVisible"  width="60%" destroy-on-close>
      <el-form ref="formRef" :model="data.form" label-width="80px" style="padding: 20px 30px 10px 0">
        <el-form-item prop="img" label="封面图" >
          <el-upload
              action="http://localhost:9999/files/upload"
              :headers="{ token:data.user.token }"
              :on-success="handleFileSuccess"
              list-type="picture"
          >
            <el-button type="primary">上传图片</el-button>
          </el-upload>
        </el-form-item>
        <el-form-item prop="title" label="标题" >
          <el-input v-model="data.form.title" autocomplete="off" placeholder="请输入标题"/>
        </el-form-item>
        <el-form-item prop="title" label="图书类型" >
          <el-select
              v-model="data.form.categoryId"
              placeholder="请选择图书类型"
              style="width:100%"
          >
            <el-option
                v-for="item in data.categoryData"
                :key="item.id"
                :label="item.title"
                :value="item.id"
            />
          </el-select>
        </el-form-item>
        <el-form-item prop="content" label="推荐详情" >
          <div style="border:1px solid #ccc;width: 100%">
            <Toolbar
            style="border-bottom: 1px solid #ccc"
            :editor="editorRef"
            :mode="mode"
            />
            <Editor
            style="height:500px;overflow-y: hidden;"
            v-model="data.form.content"
            :mode="mode"
            :defaultConfig="editorConfig"
            @onCreated="handleCreated"
            />
          </div>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button @click="data.formVisible = false">取消</el-button>
          <el-button type="primary" @click="save">保存</el-button>
        </div>
      </template>
    </el-dialog>

    <el-dialog title="推荐详情" v-model="data.viewVisible"  width="60%" destroy-on-close>
      <div v-html="data.content" style="padding: 0 20px"></div>
    </el-dialog>
  </div>
</template>



<script setup>
import {Search} from "@element-plus/icons-vue";
import {onBeforeUnmount,reactive,ref,shallowRef} from "vue";
import request from "@/utils/request.js";
import {ElMessage, ElMessageBox} from "element-plus";
import {Editor,Toolbar} from "@wangeditor/editor-for-vue"
import '@wangeditor/editor/dist/css/style.css'

const data=reactive({
  user:JSON.parse(localStorage.getItem('code_user')||'{}'),
  pageNum:1,
  pageSize:5,
  total:0,
  tableData:[],
  title1:null,
  form:{},
  formVisible:false,
  content:null,
  viewVisible:false,
  categoryData:[]
})

//初始化wang
const editorRef=shallowRef()
const mode='default'
const editorConfig={ MENU_CONF:{} }

editorConfig.MENU_CONF['uploadImage']={
  headers:{
    token:data.user.token,
  },
  server:'http://localhost:9999/files/wang/upload',
  fieldName:'file'
}

onBeforeUnmount(()=>{
  const editor=editorRef.value
  if(editor==null) return
  editor.destroy()
})

const handleCreated=(editor)=>{
  editorRef.value=editor
}
//wang结束


const load=()=>{
  request.get('/introduction/selectPage',{
    params:{
      pageNum:data.pageNum,
      pageSize:data.pageSize,
      title1:data.title1
    }
  }).then(res=>{
    if(res.code==='200'){
      data.tableData=res.data?.list
      data.total=res.data?.total
    }else {
      ElMessage.error(res.msg)
    }
  })
}
load()


const handleFileSuccess=(res)=>{
data.form.img=res.data
}

const add=()=>{
  request.post('/introduction/add',data.form).then(res=>{
    if (res.code==='200'){
      ElMessage.success('新增成功')
      data.formVisible=false
      load()
    }else {
      ElMessage.error(res.msg)
    }
  })
}

const update=()=>{
  request.put('/introduction/update',data.form).then(res=>{
    if (res.code==='200'){
      ElMessage.success('更新成功')
      data.formVisible=false
      load()
    }else {
      ElMessage.error(res.msg)
    }
  })
}

const save=()=>{
data.form.id?update():add()
}

const reset=()=>{
  data.title1=null
  load()
}

const viewContent=(content)=>{
data.content=content
  data.viewVisible=true
}

const handleAdd=()=>{
  data.form={}
  data.formVisible=true
}

const handleEdit=(row)=>{
  data.form=JSON.parse(JSON.stringify(row))
  data.formVisible=true
}

const del=(id)=>{
  ElMessageBox.confirm('删除后无法恢复，确认删除吗？','删除确认',{type:'warning'}).then(res=>{
    request.delete('/introduction/delete/'+id).then(res=> {
      if (res.code === '200') {
        ElMessage.success('删除成功')
        load()
      } else {
        ElMessage.error(res.msg)
      }
    })
  }).catch(err=>{})
}


const loadCategory=()=>{
  request.get('/category/selectAll').then(res=>{
    if(res.code==='200'){
      data.categoryData=res.data
    }else {
      ElMessage.error(res.msg)
    }
  })
}
loadCategory()
</script>